Re: RFC: documentation of the autogroup feature

On Sun, 2016-11-27 at 22:13 +0100, Michael Kerrisk (man-pages) wrote:

Here's my attempt to define the root task group:

       *  If autogrouping is disabled, then all processes in the root CPU
          cgroup form a scheduling group (sometimes called the "root task
          group").

Can you improve on this?

A task group is a set of percpu runqueues.  The root task group is the
top level set in a hierarchy of such sets when group scheduling is
enabled, or the only set when group scheduling is not enabled.  The
autogroup hierarchy has a depth of one, ie all autogroups are peers
who's common parent is the root task group.

	-Mike
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